There are currently many talks about big earthquakes in the Philippines, especially after a 7.0 quake hit Haiti and killed hundreds of thousands of people.
A primary concern to most is the Philippine Fault Zone or the Marikina Valley Fault Line, which supposedly traverses through major parts of Metro Manila, including Marikina, Quezon City, Pasig and Taguig.
Where exactly does the Marikina Fault Line pass through?
The maps below from the Philippine Institute of Volcanology and Seismology (Phivolcs) and GMANews.tv show us.